The Rietta Blog
Cybersecurity, software, and the law between them.
Since 2005, this publication covers a wide range of topics, including cybersecurity, software development, and cloud migration. It’s a valuable resource for anyone interested in staying informed about these areas.
04/18/2012
mod_deflate: Dramatic website speed increase with Apache compression on Ubuntu Linux
by Frank Rietta
How to supercharge your mobile visitor's experience with mod_deflate, which tends to provide a 62% to 72% savings on bandwidth required to deliver each page.
04/05/2012
What is Protected Personally Identifiable Information? Do I really have to hash users' passwords?
by Frank Rietta
01/27/2012
Generate OpenSSL RSA Key Pair from the Command Line
by Frank Rietta
How to generate a 2048-bit RSA key pair with OpenSSL from the command line. Updated for 2026 to match current OpenSSL output and ciphers.
01/14/2012
Rails: TypeError: nil can't be coerced into Float
by Frank Rietta
In Rails, whinny nil exceptions are a real pain. I like to use to_f when computing float values because nil.to_f is 0.0.